diff --git a/apps/readest-app/src/services/constants.ts b/apps/readest-app/src/services/constants.ts
index b90b1f97..e7747504 100644
--- a/apps/readest-app/src/services/constants.ts
+++ b/apps/readest-app/src/services/constants.ts
@@ -247,6 +247,7 @@ export const SERIF_FONTS = [
   'Merriweather',
   'Roboto Slab',
   'Vollkorn',
+  'PT Serif',
   'Georgia',
   'Times New Roman',
 ];
@@ -264,9 +265,15 @@ export const CJK_SERIF_FONTS = [
 
 export const CJK_SANS_SERIF_FONTS = ['Noto Sans SC', 'Noto Sans TC'];
 
-export const SANS_SERIF_FONTS = ['Roboto', 'Noto Sans', 'Open Sans', 'Helvetica'];
+export const SANS_SERIF_FONTS = ['Roboto', 'Noto Sans', 'Open Sans', 'PT Sans', 'Helvetica'];
 
-export const MONOSPACE_FONTS = ['Fira Code', 'Lucida Console', 'Consolas', 'Courier New'];
+export const MONOSPACE_FONTS = [
+  'Fira Code',
+  'Consolas',
+  'Courier New',
+  'Lucida Console',
+  'PT Mono',
+];
 
 export const FALLBACK_FONTS = ['MiSans L3'];
 
diff --git a/apps/readest-app/src/styles/fonts.ts b/apps/readest-app/src/styles/fonts.ts
index 970268da..db833321 100644
--- a/apps/readest-app/src/styles/fonts.ts
+++ b/apps/readest-app/src/styles/fonts.ts
@@ -14,6 +14,9 @@ const basicGoogleFonts = [
   { family: 'Roboto', weights: 'ital,wght@0,100..900;1,100..900' },
   { family: 'Roboto Slab', weights: 'ital,wght@0,100..900;1,100..900' },
   { family: 'Vollkorn', weights: 'ital,wght@0,400..900;1,400..900' },
+  { family: 'PT Sans', weights: 'ital,wght@0,400;0,700;1,400;1,700' },
+  { family: 'PT Serif', weights: 'ital,wght@0,400;0,700;1,400;1,700' },
+  { family: 'PT Mono', weights: '' },
 ];
 
 const cjkGoogleFonts = [